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getguess.c revision 1.5 
      1 /*	$NetBSD: getguess.c,v 1.5 1995/03/23 08:32:43 cgd Exp $	*/
      2 
      3 /*
      4  * Copyright (c) 1983, 1993
      5  *	The Regents of the University of California.  All rights reserved.
      6  *
      7  * Redistribution and use in source and binary forms, with or without
      8  * modification, are permitted provided that the following conditions
      9  * are met:
     10  * 1. Redistributions of source code must retain the above copyright
     11  *    notice, this list of conditions and the following disclaimer.
     12  * 2. Redistributions in binary form must reproduce the above copyright
     13  *    notice, this list of conditions and the following disclaimer in the
     14  *    documentation and/or other materials provided with the distribution.
     15  * 3. All advertising materials mentioning features or use of this software
     16  *    must display the following acknowledgement:
     17  *	This product includes software developed by the University of
     18  *	California, Berkeley and its contributors.
     19  * 4. Neither the name of the University nor the names of its contributors
     20  *    may be used to endorse or promote products derived from this software
     21  *    without specific prior written permission.
     22  *
     23  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     24  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     25  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     26  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     27  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     28  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     29  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     30  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     31  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     32  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     33  * SUCH DAMAGE.
     34  */
     35 
     36 #ifndef lint
     37 #if 0
     38 static char sccsid[] = "@(#)getguess.c	8.1 (Berkeley) 5/31/93";
     39 #else
     40 static char rcsid[] = "$NetBSD: getguess.c,v 1.5 1995/03/23 08:32:43 cgd Exp $";
     41 #endif
     42 #endif /* not lint */
     43 
     44 #include <sys/ttydefaults.h>
     45 #include "hangman.h"
     46 
     47 /*
     48  * getguess:
     49  *	Get another guess
     50  */
     51 getguess()
     52 {
     53 	register int	i;
     54 	register int	ch;
     55 	register bool	correct;
     56 
     57 	leaveok(stdscr, FALSE);
     58 	for (;;) {
     59 		move(PROMPTY, PROMPTX + sizeof "Guess: ");
     60 		refresh();
     61 		ch = readch();
     62 		if (isalpha(ch)) {
     63 			if (isupper(ch))
     64 				ch = tolower(ch);
     65 			if (Guessed[ch - 'a'])
     66 				mvprintw(MESGY, MESGX, "Already guessed '%c'", ch);
     67 			else
     68 				break;
     69 		}
     70 		else if (ch == CTRL('D'))
     71 			die();
     72 		else
     73 			mvprintw(MESGY, MESGX, "Not a valid guess: '%s'",
     74 				unctrl(ch));
     75 	}
     76 	leaveok(stdscr, TRUE);
     77 	move(MESGY, MESGX);
     78 	clrtoeol();
     79 
     80 	Guessed[ch - 'a'] = TRUE;
     81 	correct = FALSE;
     82 	for (i = 0; Word[i] != '\0'; i++)
     83 		if (Word[i] == ch) {
     84 			Known[i] = ch;
     85 			correct = TRUE;
     86 		}
     87 	if (!correct)
     88 		Errors++;
     89 }
     90 
     91 /*
     92  * readch;
     93  *	Read a character from the input
     94  */
     95 readch()
     96 {
     97 	register int	cnt, r;
     98 	auto char	ch;
     99 
    100 	cnt = 0;
    101 	for (;;) {
    102 		if (read(0, &ch, sizeof ch) <= 0)
    103 		{
    104 			if (++cnt > 100)
    105 				die();
    106 		}
    107 		else if (ch == CTRL('L')) {
    108 			wrefresh(curscr);
    109 			mvcur(0, 0, curscr->cury, curscr->curx);
    110 		}
    111 		else
    112 			return ch;
    113 	}
    114 }
    115